Inventor · disambiguated record
Toshimasa Namekawa
Also filed as: NAMEKAWA TOSHIMASA
53 granted patents·3 pending applications·662 citations·filing 1993–2023
98Inventor score
Top patents by PatentIndex Score
56 records- 0196US6601199B1Memory-embedded LSITOSHIBA KK·Filed 1999·Granted Jul 29, 2003·145 cites·23 claims
- 0294US7928796B2Constant voltage boost power supplyTOSHIBA KK·Filed 2009·Granted Apr 19, 2011·45 cites·7 claims
- 0390US7046569B2Semiconductor integrated circuit device including OTP memory, and method of programming OTP memoryTOSHIBA KK·Filed 2004·Granted May 16, 2006·56 cites·23 claims
- 0487US7656738B2Nonvolatile semiconductor storage device having a low resistance write-bit-line and a low capacitance read-bit-line pairTOSHIBA KK·Filed 2008·Granted Feb 2, 2010·13 cites·15 claims
- 0586US7388770B2One-time programable memory with additional programming time to ensure hard breakdown of the gate insulating filmTOSHIBA KK·Filed 2005·Granted Jun 17, 2008·18 cites·7 claims
- 0686US7345903B2Nonvolatile semiconductor memory device to which information can be written only onceTOSHIBA KK·Filed 2005·Granted Mar 18, 2008·17 cites·18 claims
- 0785US8928302B2Step-up/down type power supply circuitTOSHIBA KK·Filed 2013·Granted Jan 6, 2015·7 cites·20 claims
- 0884US7256641B2Semiconductor device including a three or more stage semiconductor charge pumpTOSHIBA KK·Filed 2005·Granted Aug 14, 2007·20 cites·17 claims
- 0982US8116152B2Nonvolatile semiconductor memory device capable of preventing write-disturb and method of programmingKAKU DAICHI·Filed 2010·Granted Feb 14, 2012·11 cites·14 claims
- 1081US10871793B2Constant voltage power source circuitTOSHIBA KK·Filed 2018·Granted Dec 22, 2020·4 cites·14 claims
- 1181US7382680B2Semiconductor integrated circuit device including storage unit having nonvolatile and volatile memory element sectionsTOSHIBA KK·Filed 2006·Granted Jun 3, 2008·13 cites·17 claims
- 1281US6205079B1Semiconductor integrated circuit having power-supply circuits for producing internal supply voltagesTOSHIBA KK·Filed 2000·Granted Mar 20, 2001·31 cites·20 claims
- 1380US7613062B2Semiconductor memory device in which data is stored in nonvolatile state, by using semiconductor elements of metal oxide semiconductor (MOS) structureTOSHIBA KK·Filed 2007·Granted Nov 3, 2009·9 cites·12 claims
- 1479US8279700B2Semiconductor electrically programmable fuse (eFuse) having a polysilicon layer not doped with an impurity ion and a programming method thereofWADA OSAMU·Filed 2010·Granted Oct 2, 2012·5 cites·10 claims
- 1579US6115301ASemiconductor memory device having defect relieving system using data line shift methodTOSHIBA KK·Filed 1999·Granted Sep 5, 2000·44 cites·18 claims
- 1677US7796460B2Nonvolatile semiconductor memory deviceTOSHIBA KK·Filed 2008·Granted Sep 14, 2010·6 cites·9 claims
- 1777US6721213B2Electronic circuit and semiconductor storage deviceTOSHIBA KK·Filed 2002·Granted Apr 13, 2004·19 cites·23 claims
- 1876US6259636B1Semiconductor memory device having redundancy circuit for relieving faulty memory cellsTOSHIBA KK·Filed 1999·Granted Jul 10, 2001·39 cites·18 claims
- 1975US7532062B2Semiconductor charge pump using MOS (metal oxide semiconductor) transistor for current rectifier deviceTOSHIBA KK·Filed 2008·Granted May 12, 2009·9 cites·5 claims
- 2074US8045414B2Non-volatile semiconductor memory deviceTOSHIBA KK·Filed 2009·Granted Oct 25, 2011·4 cites·16 claims
- 2174US7630226B2Semiconductor deviceTOSHIBA KK·Filed 2008·Granted Dec 8, 2009·10 cites·15 claims
- 2274US6529399B1Semiconductor device realized by using partial SOI technologyTOSHIBA KK·Filed 2002·Granted Mar 4, 2003·15 cites·20 claims
- 2373US12267010B2Switching power circuitTOSHIBA KK·Filed 2023·Granted Apr 1, 2025·0 cites·8 claims
- 2473US7956397B2Semiconductor device, charge pumping circuit, and semiconductor memory circuitTOSHIBA KK·Filed 2007·Granted Jun 7, 2011·5 cites·8 claims
- 2573US7505300B2Nonvolatile semiconductor memory device using nonvolatile storage elements to which data can be written only onceTOSHIBA KK·Filed 2007·Granted Mar 17, 2009·8 cites·20 claims
- 2669US8120974B2Nonvolatile semiconductor memory deviceMATSUFUJI KENSUKE·Filed 2010·Granted Feb 21, 2012·6 cites·19 claims
- 2769US7557400B2Semiconductor device in which capacitance of a MOS capacitor is complemented with the capacitance of a wiring capacitorTOSHIBA KK·Filed 2007·Granted Jul 7, 2009·4 cites·12 claims
- 2867US7924598B2Nonvolatile semiconductor memoryTOSHIBA KK·Filed 2009·Granted Apr 12, 2011·8 cites·20 claims
- 2967US7106649B2Semiconductor memory deviceTOSHIBA KK·Filed 2004·Granted Sep 12, 2006·15 cites·18 claims
- 3065US11594963B2Switching power circuitTOSHIBA KK·Filed 2020·Granted Feb 28, 2023·0 cites·9 claims
- 3164US9985549B2Control of a dead time in a DC-DC converterTOSHIBA KK·Filed 2016·Granted May 29, 2018·1 cites·18 claims
- 3262US7768341B2Semiconductor charge pump using MOS (metal oxide semiconductor) transistor for current rectifier deviceTOSHIBA KK·Filed 2009·Granted Aug 3, 2010·4 cites·6 claims
- 3360US6529406B1Semiconductor device with power supply wirings and expanded wirable regions for usersTOSHIBA KK·Filed 2001·Granted Mar 4, 2003·11 cites·20 claims
- 3456US7599206B2Non-volatile semiconductor storage deviceTOSHIBA KK·Filed 2008·Granted Oct 6, 2009·3 cites·19 claims
- 3556US7257012B2Nonvolatile semiconductor memory device using irreversible storage elementsTOSHIBA KK·Filed 2005·Granted Aug 14, 2007·3 cites·19 claims
- 3656US6744680B2Semiconductor device realized by using partial SOI technologyTOSHIBA KK·Filed 2003·Granted Jun 1, 2004·5 cites·12 claims
- 3756US6154406ADynamic random access memory capable of simultaneously writing identical data to memory cellsTOSHIBA KK·Filed 1999·Granted Nov 28, 2000·16 cites·34 claims
- 3854US12148468B2Semiconductor memory device and control device for semiconductor memory devicePOWER SPIN INC·Filed 2022·Granted Nov 19, 2024·0 cites·15 claims
- 3954US7590018B2Sense amp circuit, and semiconductor memory device using the sameTOSHIBA KK·Filed 2008·Granted Sep 15, 2009·2 cites·13 claims
- 4052US8032815B2Semiconductor memory deviceTOSHIBA KK·Filed 2007·Granted Oct 4, 2011·2 cites·12 claims
- 4150US11290010B2Switching power circuitTOSHIBA KK·Filed 2020·Granted Mar 29, 2022·0 cites·24 claims
- 4250US6650574B2Semiconductor device preventing signal delay among wiringsTOSHIBA KK·Filed 2001·Granted Nov 18, 2003·6 cites·17 claims
- 4349US7924642B2Sense amp circuit, and semiconductor memory device using the sameTOSHIBA KK·Filed 2009·Granted Apr 12, 2011·1 cites·6 claims
- 4448US8716998B2DC-DC converter and digital pulse width modulatorNAMEKAWA TOSHIMASA·Filed 2011·Granted May 6, 2014·1 cites·11 claims
- 4547US5357470ASemiconductor memory device having redundancy memory cellsTOSHIBA KK·Filed 1993·Granted Oct 18, 1994·11 cites·16 claims
- 4646US11601037B2Rectangular-wave-signal generating circuit and switching power supplyTOSHIBA KK·Filed 2020·Granted Mar 7, 2023·0 cites·15 claims
- 4743US7640466B2Semiconductor integrated circuit device incorporating a data memory testing circuitTOSHIBA KK·Filed 2004·Granted Dec 29, 2009·3 cites·16 claims
- 4843US7064571B2Multiple-select multiplexer circuit, semiconductor memory device including a multiplexer circuit and method of testing the semiconductor memory deviceTOSHIBA KK·Filed 2004·Granted Jun 20, 2006·3 cites·23 claims
- 4943US2020304034A1Switched-mode power supply and self-driving deviceTOSHIBA KK·Filed 2019·Application pending·0 cites
- 5041US7061814B2Semiconductor device realized by using partial SOI technologyTOSHIBA KK·Filed 2004·Granted Jun 13, 2006·0 cites·15 claims
Showing the top 50 of 56 patent records by PatentIndex Score.
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